"I'm totally fine with being an 8th century tibetan using Anno Domini and modern english, or a 3rd-century Maurya noble using standard high german and Ab Urbe Condita, or a prussian of the 19th century giving missives in french written in modern digital sans serif, but it would be TOTAL INSANE IMMERSION BREAKING INACCURACY for my caledonian celtic empire stretching from the Highlands to Morocco to the Caucasus to use BCE instead of AUC."
Yeah, no, nonsense. The calendar is a translation issue. I'm jewish. We have an actual calendar in modern usage. And even among ourselves we use X CE, sometimes alongside the hebrew calendar, in 99% of cases because that is the context that is actually meaningful for us as modern people. Unless you're a rabbi or other learned religious figure, no one expects you to be able to understand hebrew dates. I myself have a phone app that shows the hebrew date and calendar and marks holidays because I sure as shit can't figure out what dates they actually are otherwise.
Again, calendars are a translation issue, just like presenting the game in english, french, german, etc instead of in authentic local languages for the period. I don't really care if a few weird nerds want an olympiad calendar or persian regnal dates or whatever, that is equally as silly as AUC. The info in the game should be presented in a way the player can intuitively understand.
And to those who are saying the date in PDOX games are irrelevant, lol. People on these forums regularly compare their games to historic events, and the games use historic dates for all sorts of mechanics.
I'd take the "BCE didn't exist!!!!" argument a lot more seriously if those folks were arguing in favour of DLXVIIABVRBECONDITA